TCL C7K / QM7K vs Samsung S85H

TCL C7K is one of the brightest MiniLED televisions in its price range. Under the best testing conditions, the screen managed to achieve over 1200 nits, resulting in impressive, at times almost blindingly bright scenes. And most importantly – this is not just a theory based on measurements. In practice, the brightest parts of films can shine with true cinematic grandeur. Fans of home HDR cinema should be truly satisfied.

The impression is excellent, especially in scenes with large areas of brightness – a white sky, explosions, sun reflections, or magical sunsets can surprise with an intensity of light that is rarely seen in this price range.

However, it gets a bit worse when more challenging scenarios appear on the screen, as described when discussing contrast – that is, images full of details, with small, bright elements on a dark background. In such cases, the C7K often decides to preserve black levels at the expense of brightness. An example? Scenes from the films Sicario 2 or Life of Pi, where small light sources (like a distant lantern) can become less visible, and details in the lights are simply dimmed or blend into the background.

For many viewers, this may be an acceptable compromise – as we achieve deep black levels and a pleasing plasticity of the image. Nevertheless, it is worth being aware that the visibility of small details in bright areas is not this model's strongest suit. It is simply a technological limitation that still exists – even with over 300 zones.

Interestingly, the new WOLED SE panel has brought a slight improvement in brightness to the S85 series. In the same movie scenes last year's model stayed closer to around 700 nits, while the S85H can reach roughly 800 nits. This isn't a change that completely transforms HDR perception, but that extra brightness is noticeable, especially with pinpoint highlights, specular reflections and stronger special effects. Around 800 nits is already a very good result for an entry-level OLED and in most films it's enough for HDR to have the proper impact. Bright elements can stand out clearly against perfect black, and it's still that contrast that does most of the work. You do need to bear in mind a typical limitation of organic panel technology. When a very bright scene covers a large part of the screen, brightness can drop by almost half. That's the effect of the panel's protection mechanisms, which limit its power with large bright areas.

Colours

The S85H can deliver very pleasing, saturated colours and in most HDR films it looks really good in that respect. We measured around 95% DCI-P3 coverage, so the palette most commonly used in movies is reproduced to a very high degree. Skin tones, greens and stronger reds still have the right intensity, and in normal viewing it's hard to fault them. Only when you look wider at BT.2020 do the limitations of the new OLED SE panel become apparent. Coverage was about 70%, a little less than previous-generation WOLEDs and noticeably less than QD-OLED panels. In films this is not a big loss, because most productions rarely use such highly saturated colours. You're more likely to notice it in games, where creators often opt for more intense colours.

A new feature in TCL televisions for 2025 is the long-awaited Filmmaker mode, which until now has been found in most competing brands. This is great news, as this mode is considered to be the truest to the original vision of the creators and is often recommended by enthusiasts of good picture quality. Unfortunately, as is often the case, the mere presence of this mode does not guarantee perfection. The Filmmaker mode in the TCL C7K is not without its flaws. There can be criticism of the incorrect white balance, particularly a slight dominance of blue, which resulted in cool, somewhat greyish skin tones. But that was not the biggest issue. The main complaint was the excessive brightness exposure, which is clearly visible on the gamma and EOTF graphs. The image was simply too bright, at times even blown out, which affected not only the texture of scenes but also the overall viewing experience. Some details were simply lost, and the entire image looked as if someone had slightly overcooked the brightness slider. As always, we decided to check what could be extracted from this after calibration. And that’s where it started to get really interesting…

For colour evaluation we naturally chose Filmmaker mode, and in SDR our S85H sample was very well set up from the factory. The largest deviation is in the white balance, where, as brightness rises, there is a slight lack of blue. In practice this means whites and greys have a subtly warmer tint than they should. However, this is not a major fault and during normal viewing it is unlikely to be very noticeable. Gamma also stays close to the reference value, so the image is neither overly bright nor unnecessarily dim. The S85H’s SDR picture quality is therefore very good straight out of the box. A few more imperfections appear in HDR. Here the white balance drifts more with increasing brightness, blue starts to dominate and the red component is clearly lacking. This also translates into larger errors for some colours. They do not yet amount to shifts that completely change the character of the image, but in direct comparison with a reference the difference is easier to spot. Overall, Filmmaker mode is a very good starting point before professional calibration.

After calibration, the TCL C7K showcased itself in a really good light, especially when it comes to SDR content. We managed to precisely tune the white balance, colour gamut, and brightness characteristics to the point that colour errors on the ColorChecker palette dropped below a value of 2. For the uninitiated – this is nearly a perfect result, which means that the image is very close to what the creators intended. Unfortunately, the situation was worse with 4K HDR content. Although we managed to gently stabilize the white balance and correct its previous errors, it was still evident that the television has certain "MiniLED traits," especially in brightness management. When we checked how the C7K handled the EOTF curve on actual film scenes, rather than just on synthetic test patterns, it turned out that the screen still tends to slightly brighten the entire image. This impacts the overall experience – blacks lose some depth, and the image becomes less contrasty than it should be. Despite these minor shortcomings in HDR content, the overall reception of materials – especially in SDR – is truly very good. After calibration, the C7K can display an image that can compete successfully with much more expensive models. Good colour tuning, natural skin tones, and pleasant brightness make movie sessions and everyday viewing of content more than satisfactory.

Calibration yields very good results on the S85H. First and foremost, it was possible to set the white balance almost perfectly, which removes the slightly too warm character of the image that was previously visible in SDR. Colour reproduction itself also improves markedly, with most errors falling to a very low level and in everyday viewing it is hard to speak of any noticeable inaccuracies. You can also make significant improvements in HDR, although some issues remain due to the TV's inherent characteristics. The S85H does not always hold the brightness curve perfectly; the darkest parts are slightly lifted, and as you approach the panel's limits small deviations are visible in the brightest areas. Added to this is the limited coverage of the wider BT.2020 gamut, which of course cannot be overcome by any calibration. Despite this, the end result is very good and, after calibration, the S85H can produce a really well-tuned, natural image.

TCL C7K is equipped with a feature that, according to the manufacturer, is meant to smooth out unwanted colour transitions – a sort of rescue for less successful tonal shifts. It is called "Gradual Smoothing" and… well, it sounds ambitious, but in practice it works very poorly. Regardless of whether we set it to a low or high level, the difference is minimal. Worst of all, the feature can cut out elements from the picture that should be there. Fortunately, film grain remains untouched, so at least it doesn’t smooth everything indiscriminately, but still – it’s better to simply turn this option off.

When it comes to scaling lower resolution content, it is somewhat better. SD and HD materials look quite decent, although at times we had the impression that the image loses sharpness and becomes too soft – as if something took away its definition. Fortunately, with very low sources (e.g. 576p), there was no overscan effect, meaning the picture was not artificially cropped – everything fit on the screen as it should.

Samsung has fitted the S85H with the same proprietary AI NQ4 Gen2 processor used in last year’s S85F and, in terms of digital image processing, it performs quite well. Upscaling is one of the model’s stronger points. Lower-resolution material is well sharpened, edges look natural, and the picture does not feel overly artificial. One caveat is a typical Samsung trait: at very low resolutions you cannot completely disable overscan, so the TV may slightly crop the left edge of the image. The "noise reduction" function also works very well, smoothing weaker tonal transitions. The processor can effectively remove posterisation and other imperfections visible in lower-quality material. However, you need to be careful with the strength of this function, because Samsung can be quite aggressive here. When it is activated, small image details, such as the texture of skin or clothing, can start to disappear along with the unwanted artefacts.

The TCL C7K handles motion fluidity really very well. The matrix used in it offers a refresh rate of 144 Hz, which in itself suggests that this television is more than just a regular "60 Hz" panel. Furthermore – if we connect the C7K to a computer and set the resolution to Full HD. But we'll write more about this in the paragraph about gamers and PC collaboration. Returning to everyday use – both sports and films look very good here. Thanks to the fast panel and well-functioning motion smoothing, the C7K is great for watching matches, but also for movie screenings. In the menu, we find two sliders – motion blur reduction and flicker reduction – which allow us to adjust the fluidity effect to our own preferences. At lower settings, we get a more cinematic effect, with slight stuttering motion. At higher settings – the picture becomes more theatrical, fluid to the point of excess. Everyone has their own preferences – anyone can set it to their liking.

The S85H uses an OLED panel, so it performs excellently for motion blur. Pixels respond virtually instantly, so moving objects do not leave the characteristic trailing seen on some LCD TVs. This is especially noticeable in sport and fast-paced games, where the picture remains very clean even during rapid motion. The panel itself runs at 120 Hz. That is more than sufficient for films, TV series, sport and console gaming. It is a pity Samsung did not include a higher refresh rate aimed at PC gamers, as more and more TVs now offer 144 or even 165 Hz at 4K. However, that does not affect motion handling in films or sport.

You also have a classic motion-smoothing feature with two settings, blur reduction and judder reduction. So you can decide whether films should retain their cinematic 24 frames per second or whether you prefer to smooth them a little. The S85H gives plenty of freedom here, and the interpolation works well and, with sensible settings, does not generate too many artefacts.

The TCL C7K is a television that on paper appears to be the dream equipment for gamers – and most importantly, it holds up in practice too. To start with good news: there are two full-bandwidth HDMI 2.1 ports, so we can easily connect both a console and a computer, taking advantage of all their capabilities. The panel itself supports a refresh rate of 144 Hz, which gives a significant advantage in dynamic games. There is also a complete set of gaming features: VRR (variable refresh rate), ALLM (automatic low-latency mode), and support for Dolby Vision in games. There is also the HGiG mode, which allows for HDR effects consistent with the creators' intentions. GameBar, an information bar for gamers. It works quickly, looks clear (like a Nintendo console👌), and shows what matters most: the current frame rate, VRR status, and even HDR parameters.

The Samsung S85H is very well prepared for gaming, essentially regardless of whether you connect a console or a PC. The manufacturer hasn't skimped on ports and all four HDMI ports support full HDMI 2.1. That means you can use 4K at 120 Hz, VRR and ALLM without worrying which input your console is plugged into. With multiple devices that matters a lot, because you don't have to choose between a console, a PC or a soundbar connected via eARC. The feature set itself is very comprehensive. The S85H supports VRR, FreeSync and automatic game mode switching, and Samsung also offers its extensive Game Bar where you can quickly check key signal parameters and change settings without leaving the game. The only notable omission is Dolby Vision, which will matter mainly to Xbox owners. This, incidentally, is typical of Samsung TVs. Game Motion Plus performs very well, and it's one of the features that have set Samsung TVs apart for years. It smooths motion in games running at 30 or 60 fps, but does so without as much increase in input lag as a conventional motion interpolator. In practice, with slower-paced games, racing titles or action games this can really improve the perceived motion, especially if you're sensitive to low frame rates.